3 years ago

Three times the sum of a number and 4 look like as a variable expression?

Mathematics

1 answer:

Sonja [21]3 years ago

7 0

3(x+4)
Hope this helped

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78 divided by 21?:-:

MA_775_DIABLO [31]

Answer:

3.7 or 3.71428571429

Step-by-step explanation:

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3 years ago

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Pls help me find the value of x

lions [1.4K]

Answer:

x = 3

Step-by-step explanation:

2x+6=x+9 subtract x in both sides

x +6 =9 subtract 6 in both sides

x = 3

4 0

2 years ago

Which property of equality should be used with the equation c + 5 = 78 to solve?

rjkz [21]

Answer:

Subtraction property of equality

Step-by-step explanation:

c + 5 = 78

Subtract 5 from each side using the subtraction property of equality

c+5-5 = 78-5

x = 73

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3 years ago

Peter and Henry went to the movies Peter bought the two Movie tickets for 7 dollars each. How much did he spend for the movie ti

statuscvo [17]

$14

7•2=14
Peter bought both tickets and the each cost $7 so 7 times 2 would be 14

3 0

1 year ago

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F(x)=x^2-1 <br> G(x)=x-1 <br> find (f+g)(10).

WARRIOR [948]

<h2>Adding Functions</h2><h3>Answer:</h3>

$(f +g)(10) = 108$

<h3>Step-by-step explanation:</h3>

Before we can solve for $(f +g)(10)$ , we need to know how $(f +g)(x)$ is defined.

$(f +g)(x) = f(x) +g(x) \\ (f +g)(x) = (x^2 -1) +(x -1) \\ (f +g)(x) = x^2 -1 +x -1 \\ (f +g)(x) = x^2 +x -2$

We can now solve for $(f +g)(10)$ :

$(f +g)(10) = (10)^2 +(10) -2 \\ (f +g)(10) = 100 +10 -2 \\ (f +g)(10) = 108$

6 0

2 years ago